Cross-polarization and magic angle sample spinning NMR of model organic compounds with extremely long 1H T1's
β Scribed by Daniel P. Murray; James J. Dechter; Lowell D. Kispert
- Book ID
- 105335052
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1984
- Tongue
- English
- Weight
- 250 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0887-6258
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H-27Al cross-polarization magic-angle spinning (PC/MA.?) NMR has been used to monitor selectively the non-framework aluminium (AINF) species in dealuminated zeolite Y (Si/AI=4.0-14). \*'AI quadrupole nutation with fast ( 12.5 kHz) MASand radiofrequency excitation fields up to 220 kHz reveals resonan
## Abstract This paper presents the highβresolution ^13^C and ^15^N crossβpolarization magic angle spinning (CP/MAS) NMR spectra of three natural melanin solids: __Sepia officinalis__ melanin, __Sepia officinalis__ melanin free acid (MFA) and __Human hair__ melanin. The functional group characteriz